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Pavlova-9 [17]
3 years ago
5

Find −3a2 − b3 + 3c2 − 2b3 if a = 2, b = −1, and c = 3.

Mathematics
1 answer:
solong [7]3 years ago
3 0
A = 2, B = -1, C = 3

-3a^2 - b^3 + 3c^2 - 2b^3
-3(2^2) - (-1^3) + 3(3^2) - 2(-1^3)
-3(4) - (-1) + 3(9) - 2(-1)
-12 + 1 + 27 + 2
-12 + 30
 《18 <span>》</span>
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Answer:

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Step-by-step explanation:

<u>Given formula for the area of a triangle</u>

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A. The coefficient of is b.

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3 years ago
9x+18+3x=1
Katen [24]
The error is in the second step they subtracted 3 from both sides but it was a 3x, which you can not do.
Correction.
9x+18+3x=1
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3 0
2 years ago
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Can anyone help me with this equation?
beks73 [17]

Answer:

false

Step-by-step explanation:

5+2=15÷(3+2)

5+2=15÷5

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Answer:

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Step-by-step explanation:

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To solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

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sladkih [1.3K]
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